Double wrench



W. NAYDA.

DOUBLE WRENCH.

APPLICATION FILED MAY :1. Hi6.

Patented Aug. 29, 1916.

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wmn'ysmw NAYDA, or WILMINGTON-,DELAWARE.

Specification or Letters Patent.

Patented Aug. 29, 1916.

Application filed May 17, 1916. Serial No. 98,098.

To all whom it may concern:

Be it known that I, WLADYSLAW NAYDA, a subject of the Czar of Russia, residing at Wilmington, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Double Wrenches, of which the following is a specification.

This invention relates to certain new and usefulimprovements in double wrenches.

The-primary object of the invention is the provision of a wrench of unitary construction adapted for easy adjustment in operating upon either squared or cylindrical surfaces, the same being of great strength and easy and inexpensive to manufacture.

A further object of the invention is to provide a wrench capable of engaging two adj acently positioned objects simultaneously, a single jaw member being provided having its opposite faces in contact with the work during the active operation of the device.

A still further object of the invention is the provision of a wrench adapted for simultaneously engaging a cylindrical and a squared object adjacently positioned, such objects being independently releasable at the will of the operator.

With these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and then claimed.

In the drawings forming a part of this application and 1n which like designating characters refer to corresponding parts throughout the several views: Figure 1 is a side elevation of the device.- Fig. 2 is a rear elevation thereof, and, Fig. 3 is a transverse sectional view taken upon line IIIIII of Fig. 1.

The present wrench consists of a main shank 10 of I-beam formation having a pointed free end 11 and having a laterally projecting integral jaw 12 at its other end extending from one side thereof designated as at 13. The Web 14 of the shank 10 is cut-away at its upper end as at 15 adapted for the reception of the tang orshank 16 of a shiftable jaw 17 arranged re1ative1youtwardly of the said jaw 12 and having an inner toothed engaging face 18 disposed in opposition to the similar inner toothed face 19 of the aforementioned jaw 12. A houslng 20 is carried by the shank 10 at the opposite side thereof from the jaw 12 and is provided with an operating screw 21 journaled, in an opening 22 thereof, the said screw being in mesh with the toothed rack portion or edge 23 of the tang 16. The said tang 16 is shiftably arranged within the cut-away portion 15 and between strap members 24 carried by the shank 10, it being evident that by turning the screw 21, the tang 16 and jaw 17 are adjusted with the jaw 17 positioned at the desired distance from the jaw 12 for grasping a cylindrical member between the toothed jaw surfaces 18 and 19. A sliding jaw 25 is arranged to cooperate with the face 26 of the jaw 12 which is upon the opposite side of the latter from the toothed aw 19, the jaw 25 having an en gaging face 27 arranged in parallelism with the face 26. The jaw 25 is arranged relatively inwardly of the jaw 12 or adjacent the hand engaging portion of the shank 10 being the portion adjacent the free pointed end 11 thereof. The jaw 25 is provided with an encircling strap 28 shiftably mounted over the shank-10 and arranged with an operating screw 29 meshing with a toothed rack surface 20 upon the adjacent edge 13 of the shank 10 and whereby the jaw 25 is moved relatively of the jaw 12 by turning the screw 29. p

The complete operation of the device will be apparent from the present detailed description thereof, it being obvious that a cylindrical surface I may be grasped be tween the fixed jaw 12 and shiftable jaw 17 by operating the screw 21 while a squared surface is adapted to be maintained between the opposite plane face 26 of the jaw 12 and the face 27 of the sliding jaw 25 by turning the screw 29. The rear face 31 of the housing 20 is serviceable as a hammer while the pointed end 11 may be used as a pry or screw driver if found desirable.

What I claim as new is A wrench comprising an elongated shank having one longitudinal edge thereof provided with a projecting jaw at the end of the shank and with a toothed portion spaced from the said jaw, a central longitudinal portion of the shank being cut-away, an inner jaw slidably mounted upon the said shank, an operating screw carried by said inner jaw in operative mesh with the said toothed surface, an outer jaw provided with a tang slidably positioned within the said cut-away portion, and an operating vscrew aw being operatively positioned interme- 10 diate the said outer and innerjaws. In testimony whereof I afiix my signature.

WLADYSLAW NAYDA.

copies of this patent may be obtained for five cents each, by, addressing the Commissioner oi iP atenta Washington, I). G. 1 

